1.
Which symbol makes the following statement true?
3.25 × 10
3
______ 325
A.
B.
>
C.
<
D.
=
Hint
2.
Simplify (7
a
4
b
) (8
a
7
b
6
).
A.
15
a
11
b
7
B.
56
a
28
b
6
C.
15
a
28
b
6
D.
56
a
11
b
7
Hint
3.
Evaluate (3.2 × 10
-5
)(5.4 × 10
9
). Express the result in scientific notation.
A.
1.728 × 10
3
B.
1.728 × 10
5
C.
0.1728 × 10
6
D.
17.28 × 10
4
Hint
4.
Evaluate
. Express the result in scientific notation.
A.
8.0 × 10
-7
B.
80 × 10
-8
C.
0.8 × 10
-8
D.
8.0 × 10
-9
Hint
5.
Use an exponent to write 177,147 as a power of 3.
A.
3
17
B.
3
9
C.
3
19
D.
3
11
Hint